"The Legend of the Radiant Mask" is a platformer made with Game Maker.
Little to nothing can be said about game's developer, year of release (the displayed date is the date of my discovery), length or the story. There's almost no info to find in web and game, when run, jumps immediately to the first section, without any sort of introduction.
Radiant Mask is divided into several sections. These sections are accessible only via special door and, in turn, some of these door are accessible only if you gather enough number of coins (the number of coins required is displayed above the door). Certain areas within sections are also inaccessible at the beginning - to reach them you must first find special items which activate "invisible" floors. You start without weapon, but later you can collect ammo and bombs, as well as gain certain abilities (like invincibility to lava etc.).
Curly's World of Freeware has donated a copy of this software and related data to the Classic PC Games catalog. Please visit their website for more information and discussion on this game.